Littelfuse RM1000 is a depluggable surge protection device designed for use in humid environments, with a humidity tolerance of up to 85% non-condensing. It offers NEMA 3R/UL Type 12 protection and a maximum input current range of 0.1A. With an address range of 1-99 (max 16 per RM-1000) and RS-485 communication interface using Modbus RTU protocol, it allows for easy integration into your system. The communications range can reach up to 50 ft, or 4000 ft with a separate isolated power supply, and supports baud rates ranging from 1200 to 19200 Bps.